GStreamer Out-Of-Bounds Write Vulnerability in DVB Subtitles
CVE-2026-2923

7.8HIGH

Key Information:

Vendor

Gstreamer

Status
Gstreamer
Vendor
CVE Published:
13 March 2026

What is CVE-2026-2923?

This vulnerability exists within the GStreamer library when handling coordinates, leading to improper validation of user-supplied data. An attacker can exploit this flaw to write beyond the allocated buffer, potentially enabling remote code execution in the context of the affected process. Effective exploitation requires interaction with the library, but various attack vectors may depend on the specific implementation of GStreamer.

Affected Version(s)

GStreamer 1c6e163aa33962f5ee4a87d29319ccdd5cb67612

References

https://www.zerodayinitiative.com/advisories/ZDI-26-161/
x_research-advisory
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/comm...
vendor-advisory

CVSS V3.0

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.